滤布的过滤性能试验研究

以4种常用工业滤布为过滤介质,分别进行了透过空气、清洁水和酞氰蓝染料悬浮液的渗透性试验,测得了滤布的透气阻力、透水阻力和透过悬浮液的过滤介质阻力,并推出了它们之间的关系。通过悬浮液的过滤试验,提出了一种理论预测滤布的颗粒截留能力的方法。     

LAROX 压滤机滤布选型试验和研究

本文重点介绍了我厂ＬＡＲＯＸ压滤机在生产过程中的滤布消耗情况,以及我们在探讨如何降低滤布消耗,降低生产成本,提高其开车率的工作中,对滤布进行选型试验、研究以及得出的结论。     

机织滤布的堵塞及单丝滤布的开发应用

从机织滤布的材料性质、孔隙结构及加工工艺等方面出发,讨论了机织滤布的堵塞机理及规律,在此基础上,充分论证了单丝滤布是减轻滤布堵塞,延长滤布过滤周期,提高过滤指标和经济效益的最有效的措施之一,并给出了生产实例的对比     

板框压滤机滤布清洗剂的研究及现场应用

某钢厂的转炉炼钢除尘水系统采用板框式压滤机,经常因滤布堵塞板结导致喷浆事件的发生。常规物理法清洗不彻底,以无机酸进行化学清洗的方法损坏滤布,而频繁地更换滤布又会增加运行成本。为此研制了一种专门针对滤布堵塞问题的清洗剂TS-7609,经现场应用,滤布堵塞板结的情况得以明显改善,大大降低了运行成本。     

轮胎橡胶材料力学性能试验研究

通过试验测量了各种轮胎胶料的力与变形关系和断裂强度，对其应力-应变关系、弹性模量-应变关系、断裂强度和滞后现象进行了分析。通过试验结果来了解轮胎胶料的力学性能，对于产品设计、轮胎力学分析和性能仿真具有重要的实际指导意义。     

机织滤布的生产与使用

介绍了国外固液分离用机织滤布的生产与使用现状,分析了国外过滤介质孔径,开孔率,透水和透气性能等测定标准,对机织滤布的材料,织造,精整加工技术等的发展趋势进行了讨论了,并着重介绍了目前重点发展的单丝滤布,双层复合滤布和涂膜滤布。     

真空吸滤机滤布应用试验

<正>我公司利用电石渣配料烧制熟料,选用真空吸滤机来降低料浆水分,生产含水低于40%的生料饼。真空吸滤机上原安装的是无纺布滤布,使用过程中存在以下几个缺点:一是拆装难度大,必须使用专用设备进行拆装,费力费时还极易损坏滤板;二是清洗困难,使用一段时间后,由于微小颗粒堵塞过滤孔造成滤饼水分升高、产能降低,需要对滤布进行酸洗。     

横纹槽换热管力学性能试验研究

通过试验研究了横纹槽换热管的力学性能,验证了这种结构的可靠性并获得了几点重要结论。     

Microfiltration of yeast cells in an internal filter reactor

Microfiltration was carried out in a newly-developed internal filter reactor system (stainless steel membrane filter, pore size=2 or 10 μm) using yeast cells ofSaccharomyces cerevisiae ATCC 24858, industrialS. cerevisiae, and recombinant yeast RH 51. The filter performance was measured in terms of filtrate flux and retention coefficient of cell, and was highly influenced by agitation speed and cell concentration. Both gel polarization model and solid flux model failed to predict the filtration behavior in the internal filter system. An empirical equation was obtained to correlate filtrate flux as a function of agitation speed and cell concentration. Retention coefficient with a filter of 2 Μm pore size was found more than 95%, and the filter was suitable for the yeast cell separation.     

A lab-scale study on the humidity conditioning of flue gas for improving fabric filter performance

A centrifugal separator was constructed to examine the effect of flue gas humidity on the adhesional force between fabric and collected dust. A lab-scale fabric filter sampling system (FFSS) was also manufactured by using a piece of flat fabric as a sample of bag material. In addition, an automatic control system for gas humidity was devised and installed in the FFSS, and, then, the following effects were studied: (i) the influence of gas humidity on the adhesional force between fabric and dust particles; (ii) the influence of gas humidity on the performance of fabric filter in terms of pressure drop, ΔP, dust removal efficiency, η, and specific cake resistance, K′₂; (iii) the variations in the composite-performance indices with gas humidity; and (iv) the influence of gas humidity on cleaning of dust-cake in terms of effective residual pressure drop. The main objectives were to determine the minimum and maximum values for the gas humidity range and to find the appropriate conditions for dust cleaning in terms of the critical value of effective residual pressure drop.     

An investigation of high operating temperatures in mechanical vapor-compression desalination

It is common practice to operate mechanical vapor-compression (MVC) seawater desalination systems at temperatures lower than 80°C. This study presents the detail engineering and economics of a MVC system operating at 172°C. The literature indicates that high overall heat transfer coefficients for the evaporator are possible at high temperatures with dropwise condensation on the steam side and pool boiling on the liquid side. Employing high operating temperature delivers the following advantages: (1) low compression work, (2) small latent heat transfer area, and (3) small compressor. These advantages potentially reduce operating costs and capital investment. The disadvantages follow: (1) pretreatment required to prevent fouling of heat exchangers, (2) careful selection of materials to prevent corrosion, and (3) larger sensible heat transfer area is required. A desalination plant is designed herein to produce 37,854 m³/d (10 mil gal/day), which is financed with a 5%, 30-y municipal bond. To maximize energy efficiency, combined-cycle cogeneration is employed. For the US ($5.00/GJ energy), the product water selling price is estimated to be $0.49/m³ ($1.86/thous gal). For the Middle East ($0.50/GJ energy) the product water selling price is estimated to be $0.38/m³ ($1.44/thous gal). These are attractive prices relative to competing technologies.     

平行面机械密封结构和性能的研究

介绍了理想和名义径向平行面机械密封的平行面原则、典型的模型、结构和性能。最后给出一些平行面机械密封的主要参数和性能的计算方法和示例，可供机械密封设计使用     

15m2平盘过滤机的研发与应用

对15m2平盘过滤机的工艺流程、结构特点、技术设计、应用效果、经济效益及推广价值等方面做了详细介绍。     

Study on the mechanical strength of primary carbonate tablets

The mechanical strength of three carbonate tablets constructed by uniaxial compaction is evaluated using a simple tester, specially designed, as a comparative method, to classify and establish correlations between the measured resistance and the physical and flow properties of each carbonate. The net compression work required to construct the tablets is also compared with the strength of the samples in order to relate it to powder's ability to convert the force applied into effective solid-solid bonds.     

叶蜡石常规三轴压缩下力学性能的实验研究

对天然叶蜡石及经不同温度焙烧的粉压叶蜡石进行了常规三轴压缩实验，分析了峰值应力、弹性模量等力学参数。研究结果表明，岩样的峰值应力都随着围压的增大而增大。相比于粉压叶蜡石峰后从应变软化转化为理想塑性，天然叶蜡石表现出相对的脆性。而经不同温度焙烧的粉压叶蜡石之间，以及焙烧过与未焙烧的粉压叶蜡石之间都存在着明显的力学性能的差异。     

金属波齿复合垫片结构参数和力学性能关系的试验研究

对柔性石墨金属波齿复合垫片的结构参数和力学性能的关系进行了较系统的试验研究,结果表明采用不锈钢为骨架,齿距在3～5mm,柔性石墨密度在1．1g／cm3左右,柔性石墨覆层厚度在1．3mm左右的复合垫片具有较好的力学性能。